Initial project import

tools/v/vlib/readline/readline.v

@@ -0,0 +1,41 @@
+// Copyright (c) 2019-2024 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+//
+// Serves as a more advanced input method
+// based on the work of https://github.com/AmokHuginnsson/replxx
+//
+module readline
+
+import term.termios
+
+// Winsize stores the screen information on Linux.
+struct Winsize {
+	ws_row    u16
+	ws_col    u16
+	ws_xpixel u16
+	ws_ypixel u16
+}
+
+// Readline is the key struct for reading and holding user input via a terminal.
+pub struct Readline {
+pub mut:
+	is_raw                 bool
+	orig_termios           termios.Termios // Linux
+	current                []rune          // Line being edited
+	cursor                 int             // Cursor position
+	overwrite              bool
+	cursor_row_offset      int
+	prompt                 string
+	prompt_offset          int
+	previous_lines         [][]rune
+	skip_empty             bool // skip the empty lines when calling .history_previous()
+	search_index           int
+	is_tty                 bool
+	last_prefix_completion []rune
+	last_completion_offset int
+	completion_list        []string
+	completion_callback    fn (string) []string = unsafe { nil }
+mut:
+	orig_stdin_mode u32 // Windows
+}